#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
using namespace std;

int main()
{
    int n;
    long long s, x, y, z;
    cin >> n >> s >> x >> y >> z;
    
    vector<unsigned long long> a(n/64+1, 0);
    a[0] = (s % 2) << 1;
    for(int i=2; i<=n; ++i){
        s = (x * s + y) % z;
        a[i/64] |= (s % 2) << (i % 64);
    }

    vector<unsigned long long> tmp(n/64+1);
    int q;
    cin >> q;
    while(--q >= 0){
        int s, t, u, v;
        cin >> s >> t >> u >> v;

        int l = u / 64;
        int r = v / 64;
        for(int i=l; i<=r; ++i)
            tmp[i] = a[i];
        
        while(s <= t){
            int len = t - s + 1;
            len = min(len, (s / 64 + 1) * 64 - s);
            len = min(len, (u / 64 + 1) * 64 - u);

            unsigned long long b = (a[s/64] >> (s % 64)) & ((1LL << len) - 1);
            tmp[u/64] ^= b << (u % 64);
            s += len;
            u += len;
        }

        for(int i=l; i<=r; ++i)
            a[i] = tmp[i];
    }

    for(int i=1; i<=n; ++i){
        if(a[i/64] & (1LL << (i % 64)))
            cout << 'O';
        else
            cout << 'E';
    }
    cout << endl;

    return 0;
}